IT1097274B - Co:polyether-glycol! from alkylene oxide or cyclic acetal and THF - using fluorosulphonic acid gp. contg. polymers as catalysts - Google Patents
Co:polyether-glycol! from alkylene oxide or cyclic acetal and THF - using fluorosulphonic acid gp. contg. polymers as catalystsInfo
- Publication number
- IT1097274B IT1097274B IT2492378A IT2492378A IT1097274B IT 1097274 B IT1097274 B IT 1097274B IT 2492378 A IT2492378 A IT 2492378A IT 2492378 A IT2492378 A IT 2492378A IT 1097274 B IT1097274 B IT 1097274B
- Authority
- IT
- Italy
- Prior art keywords
- reaction
- contg
- glycol
- chain
- alkylene oxide
- Prior art date
Links
- 229920000642 polymer Polymers 0.000 title abstract 4
- 239000003054 catalyst Substances 0.000 title abstract 3
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 title abstract 2
- 125000002947 alkylene group Chemical group 0.000 title abstract 2
- -1 cyclic acetal Chemical class 0.000 title abstract 2
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 title 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 abstract 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 abstract 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052736 halogen Inorganic materials 0.000 abstract 2
- 150000002367 halogens Chemical class 0.000 abstract 2
- 239000012429 reaction media Substances 0.000 abstract 2
- 239000002981 blocking agent Substances 0.000 abstract 1
- 239000004927 clay Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Polyethers (AREA)
Abstract
A copolyether-glycol is prepd. by copolymerising an alkylene oxide or a cyclic acetal and tetrahydrofuran using water or an alkanediol as chain blocking agent, and as catalyst, a polymer (I) of monoethylenically unsatd. monomers, (I) contg. gps. of formula: where is the polymer (I) chain or a segment thereof, D is H, 1-10C aliphatic or aromatic hydrocarbon gp. a halogen or a segment of the polymer (I) chain, X and Y are H, aliphatic or aromatic hydrocarbon gp. or F, at least one of X and Y must be F, R is a linear or branched linking gp. having is not >40C in the main chain, and Z is H, 1-10C aliphatic or aromatic hydrocarbon gp. or halogen. (I) is free of functional gps. which would hinder the reaction. The physical nature of the catalyst and its low solubility in the reaction medium make it easy to separate from the reaction medium at the end of the reaction and minimise its loss during the reaction (cf. clay). The process can therefore be continuous. The prods are used in the prepn. of polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2492378A IT1097274B (en) | 1978-06-23 | 1978-06-23 | Co:polyether-glycol! from alkylene oxide or cyclic acetal and THF - using fluorosulphonic acid gp. contg. polymers as catalysts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2492378A IT1097274B (en) | 1978-06-23 | 1978-06-23 | Co:polyether-glycol! from alkylene oxide or cyclic acetal and THF - using fluorosulphonic acid gp. contg. polymers as catalysts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7824923A0 IT7824923A0 (en) | 1978-06-23 |
| IT1097274B true IT1097274B (en) | 1985-08-31 |
Family
ID=11215146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2492378A IT1097274B (en) | 1978-06-23 | 1978-06-23 | Co:polyether-glycol! from alkylene oxide or cyclic acetal and THF - using fluorosulphonic acid gp. contg. polymers as catalysts |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1097274B (en) |
-
1978
- 1978-06-23 IT IT2492378A patent/IT1097274B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT7824923A0 (en) | 1978-06-23 |
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